diff --git a/class-sz/select_makefile.sh b/class-sz/select_makefile.sh
index f716add9..762bdc02 100755
--- a/class-sz/select_makefile.sh
+++ b/class-sz/select_makefile.sh
@@ -11,6 +11,9 @@ elif [ "$UNAME_S" == "Linux" ]; then
     cp Makefile_linux Makefile
 else
     echo "OS not supported yet: $UNAME_S. See README.md for preM1 mac. Otherwise, please get in touch or open an issue on the CLASS-SZ github."
-    exit 1
+    echo "UNAME_S: $UNAME_S"
+    echo "UNAME_M: $UNAME_M"
+    echo "will try with Makefile_linux"
+    cp Makefile_linux Makefile
 fi